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tdasto
Registered Users
Posts:3
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| 12/17/2001 4:03 PM |
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| What type/brand of adhesive is used to glue the drywall to the foam? |
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James Eggert
Registered Users
Posts:1001
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| 12/17/2001 7:26 PM |
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In the U.S. it is almost impossible to retrain our rockers to glue and use a few screws as in many European countries. They basically refuse to do it for fear of callbacks, I guess.
Any adhesive that does not "melt" the foam is applicable. Some of the large commercial style cans with foam guns, such as EnerFoam, work well. Just read the can or cartridge.
Take Care
Jim |
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Take Care
Jim
Design/Build/Consulting
"Not So Big" Design Proponent |
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tdasto
Registered Users
Posts:3
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| 12/18/2001 9:14 AM |
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So, a non-foam adhesive such as "PL Polyurethane Construction Adhesive" which says it is foam compatible will do the job? The drywall contractors don't want to use any adhesive that "drips" such as the foam type adhesives...
Edited by - tdasto on 12/18/2001 09:20:44 |
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jdcoombs
Registered Users
Posts:57
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| 12/18/2001 2:10 PM |
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In the US we are pretty strict with our building codes as they pertain to fire. Building codes require a 15 minute barrier from fire and drywall fits the bill. Problem is, adhesives don't. There are no adhesives (that I know of) that have been approved for a 15 minute fire rating. Still have to screw it on. as to how screw spacing, I expect the current code governs.
Jerry D. Coombs, PE
Director of Engineering
American Polysteel. LLC
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Unregistered
Registered Users
Posts:2321
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| 12/18/2001 2:23 PM |
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The typical drywall installation on a stud wall is glue and screw. I just wanted to find an adhesive that would work in a normal drywall installation - with screws. In fact, I specified screwing the edges every 2 feet into the tabs and at least one in the center. That is at least the same as a stud system gets screwed.
Thanks for the input. |
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badchad
Registered Users
Posts:66
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| 12/19/2001 10:15 PM |
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Not exacly and expert on all of this but what I have done with drywalling both on foam and with studs and over plywood, I discovered that any adhesive whether it says foam safe or not, should be tested on the foam you are applying too. We did some testing on a few products called "foam safe" and watched it melt the section we tested it on (I apologize I cannot remember the adhesives we tried and if I come across them I will post it here).
Just my 2 cents,
Chad Newman
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James Eggert
Registered Users
Posts:1001
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| 12/20/2001 8:54 AM |
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tdasto
Personally I don't think the PL, which I like, would be a very economical and labor saving adhesive for installation of d/w.
The can adhesives would probably be a better value. Note, there are specific structural rated adhesives available that are rated better than the typical installation foam we use. You can even put down plywood with the stuff!
Take Care
Jim |
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Take Care
Jim
Design/Build/Consulting
"Not So Big" Design Proponent |
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tdasto
Registered Users
Posts:3
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| 12/20/2001 9:56 AM |
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Thanks for the comments. I have tested the PL Polyurethane adhesive on some foam and it didn't melt it. I also bonded some foam to some drywall and it is still holding STRONG after 10 days. I think it will work. I'll let you know after we move in if the drywall starts dropping!
I will say that the manufacturer, OSI Sealants (www.osisealants.com), of this adhesive has yet to respond to four separate inquiries, over the phone and via email, regarding my questions for this application.
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